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authorKumar Gala <galak@kernel.crashing.org>2008-12-13 17:20:27 -0600
committerWolfgang Denk <wd@denx.de>2008-12-15 22:04:29 +0100
commit65e43a10631537dcb92c302d36301a12308216c3 (patch)
tree68b2712c8c277d0489768ecbff8ed031dde00a3f
parent45845301af3de8675c1f7bbc815c6de35452605a (diff)
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Introduce virt_to_phys()
virt_to_phys() returns the physical address given a virtual. In most cases this will be just the input value as the vast majority of systems run in a 1:1 mode. However in systems that are not running this way it should report the physical address or ~0 if no mapping exists for the given virtual address. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
-rw-r--r--include/asm-arm/io.h5
-rw-r--r--include/asm-avr32/io.h5
-rw-r--r--include/asm-blackfin/io.h5
-rw-r--r--include/asm-i386/io.h5
-rw-r--r--include/asm-m68k/io.h5
-rw-r--r--include/asm-microblaze/io.h5
-rw-r--r--include/asm-mips/io.h2
-rw-r--r--include/asm-nios/io.h5
-rw-r--r--include/asm-nios2/io.h5
-rw-r--r--include/asm-ppc/io.h5
-rw-r--r--include/asm-sh/io.h5
-rw-r--r--include/asm-sparc/io.h5
12 files changed, 56 insertions, 1 deletions
diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h
index f4ae307..fec3a7e 100644
--- a/include/asm-arm/io.h
+++ b/include/asm-arm/io.h
@@ -57,6 +57,11 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
/*
* Generic virtual read/write. Note that we don't support half-word
* read/writes. We define __arch_*[bl] here, and leave __arch_*w
diff --git a/include/asm-avr32/io.h b/include/asm-avr32/io.h
index 06e52b1..d22cd35 100644
--- a/include/asm-avr32/io.h
+++ b/include/asm-avr32/io.h
@@ -125,4 +125,9 @@ static inline void unmap_physmem(void *vaddr, unsigned long len)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
#endif /* __ASM_AVR32_IO_H */
diff --git a/include/asm-blackfin/io.h b/include/asm-blackfin/io.h
index da58914..6806494 100644
--- a/include/asm-blackfin/io.h
+++ b/include/asm-blackfin/io.h
@@ -64,6 +64,11 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
/*
* These are for ISA/PCI shared memory _only_ and should never be used
* on any other type of memory, including Zorro memory. They are meant to
diff --git a/include/asm-i386/io.h b/include/asm-i386/io.h
index 2c57140..9b757d4 100644
--- a/include/asm-i386/io.h
+++ b/include/asm-i386/io.h
@@ -229,4 +229,9 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
#endif
diff --git a/include/asm-m68k/io.h b/include/asm-m68k/io.h
index 1fccc12..50ea087 100644
--- a/include/asm-m68k/io.h
+++ b/include/asm-m68k/io.h
@@ -251,4 +251,9 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
#endif /* __ASM_M68K_IO_H__ */
diff --git a/include/asm-microblaze/io.h b/include/asm-microblaze/io.h
index 8804724..7e190d1 100644
--- a/include/asm-microblaze/io.h
+++ b/include/asm-microblaze/io.h
@@ -155,4 +155,9 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
#endif /* __MICROBLAZE_IO_H__ */
diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h
index 3a0f33f..031186d 100644
--- a/include/asm-mips/io.h
+++ b/include/asm-mips/io.h
@@ -118,7 +118,7 @@ static inline void set_io_port_base(unsigned long base)
* Change virtual addresses to physical addresses and vv.
* These are trivial on the 1:1 Linux/MIPS mapping
*/
-extern inline unsigned long virt_to_phys(volatile void * address)
+extern inline phys_addr_t virt_to_phys(void * address)
{
return CPHYSADDR(address);
}
diff --git a/include/asm-nios/io.h b/include/asm-nios/io.h
index 8b78806..899682c 100644
--- a/include/asm-nios/io.h
+++ b/include/asm-nios/io.h
@@ -133,4 +133,9 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
#endif /* __ASM_NIOS_IO_H_ */
diff --git a/include/asm-nios2/io.h b/include/asm-nios2/io.h
index 2f1ec26..01d11ef 100644
--- a/include/asm-nios2/io.h
+++ b/include/asm-nios2/io.h
@@ -53,6 +53,11 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
extern unsigned char inb (unsigned char *port);
extern unsigned short inw (unsigned short *port);
extern unsigned inl (unsigned port);
diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h
index c349681..c00de45 100644
--- a/include/asm-ppc/io.h
+++ b/include/asm-ppc/io.h
@@ -298,4 +298,9 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
#endif
diff --git a/include/asm-sh/io.h b/include/asm-sh/io.h
index adc3f81..ca598a6 100644
--- a/include/asm-sh/io.h
+++ b/include/asm-sh/io.h
@@ -261,5 +261,10 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
#endif /* __KERNEL__ */
#endif /* __ASM_SH_IO_H */
diff --git a/include/asm-sparc/io.h b/include/asm-sparc/io.h
index 5f8d05c..0c5d86c 100644
--- a/include/asm-sparc/io.h
+++ b/include/asm-sparc/io.h
@@ -90,4 +90,9 @@ static inline void unmap_physmem(void *vaddr, unsigned long flags)
}
+static inline phys_addr_t virt_to_phys(void * vaddr)
+{
+ return (phys_addr_t)(vaddr);
+}
+
#endif